<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<style>
		div{
			width:100px;
			height:100px;
			background-color:red;
	
			/*相对自己移动，本身地方占据位置，移动会覆盖其他元素*/
			position: relative;
			
			
			left:300px;
			top:100px;

		}
	</style>
</head>
<body>
	<div></div>
</body>
</html>